MATLAB: How to do normalization of a matrix

matrix arraynormalization

I have a matrix wity dimension 100 by 50. Now i want to normalize the matrix by doing normaization of each column. I want to normlaize each column separately to do normalization

Best Answer

You can use the function normalize and specify which dimension you want to normalize.

From the documentation

"N = normalize(A) returns the vectorwise z-score of the data in A with center 0 and standard deviation 1.

If A is a vector, then normalize operates on the entire vector.

If A is a matrix, table, or timetable, then normalize operates on each column of data separately.

If A is a multidimensional array, then normalize operates along the first array dimension whose size does not equal 1. "

Related Solutions

MATLAB: Operate on all the columns of a matrix

"N = normalize(A,dim) returns the z-score along dimension dim. For example, normalize(A,2) normalizes each row."

norm_mat=normalize(mat,1);

norm is a function, so I don't recommend using it as a variable name

MATLAB: How to normalize time periods

MATLAB has a normalize function, you can view the documentation here. From your description of your problem, you can first calculate the mean of the arrays Debut and End element-wise and then use normalize() on the resultant array. For example, the following code does somewhat similar to what you want:

x = rand(1,10);
y = rand(1,10);
avg = (x+y)/2;
norm_avg = normalize(avg);

where x,y are 2 arrays, avg is the element-wise average of x,y and norm_avg is the result after using normalize() on avg.

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MATLAB: Operate on all the columns of a matrix

MATLAB: How to normalize time periods

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